Improvement in motors for street-cars



v3 Sheets-Sheet 2.

J. F. KELLBY. vMoto-r for Street-Cars. No. 204,052l

Patented May 21,1878'.

rLPTifls, PHoTd-UTMDGHAPHER. WASHINGTON, D c.

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J. F. KELLEY. Motor for StreetfOars.

Per'cenedL Nlay 21, 1.878.

N.FETERS, PHOTO-LITHOGRPKEW, WASHINGTON. D C4 UNITED? STATES L'PerHNTi'(3in1-uen.

JOSEPH RKELLEY, on WASHINGTON, DISTHI'OTOE COLUMBIA.

specification lforming part of Letters Patent iva-204,052, dated May 21, isvsppiicanon'ied 'April 13, 187s.'

To all who/met may concern:

Be it' known that I, JosEPH F.'KELLEY, of Washingtomin the District of Columbia, have invented certain new'and useful Improvements in Engines for Street andothje'r Railways; and I ldo hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying'draw ings, and to letters of reference marked thereon, which form -a part of this specification. l My improved engine' is designed for propelling street or other cars. f I use a horizontal revolving weighted wheel, which is bornev 'upon the tops of the traction'-I wheels, and'drives them by friction. i i The revolving weighted wheel is carried by a vertical shaftsuitably supported upon the truck-iframe, and is driven by any suitable,

connections. l. i

vvThe traction driving-wheelsl are carried by rests upon and drives them' by friction-at its opposite sides, and in order that said wheels may be driven in the same direction and at the same speed, I employat one side 'of the revolving weight two independent traction'- wheels, 'one resting upon the other, each having a diameter just'half that of the single traction drive-wheel, which causes the lower One of these two traction-'wheels 'to revolve forward', and, as bothtogether equal the'diameter of the single wheel, they therefore act asa single drive-wheel, and give the same'mo-l tiiln eind traction-power as the opposite single W ee The weight ofthe wheel must be sufficient toproduce the required traction-power of the driving-wheels; and'for street-cars, whose speed iscomparatively slow, said wheel is driven by a bevel-gear-on itsv upper face by means of Va bevelpinion `suitably connected with the crank-shaft. 'This pinion vis adapted tobe thrown in and out of gear with the revolving weighted wheel Yto disconnect' it from the .crankshaft or engine of -small' power, when it is desired to stop the car, which may have the usual brake appliances for this purpose, if deemed necessary.

For greater speed, the prime motor is connected directly with the vertical weight-shaft in any suitable manner, and the cog-gearing isnot used. Y

For street-cars in which the weighted Wheel is 'driven by 'a face-gear, I employ an independent pinion at the side ofthe*revolving weighted wheel oppositethe first-named pinion and connect itwith a similarshifting device, so that whenl the rst' pinion is thrown out the Asecond maybe thrown into gear; and I drive'thissecond pinion Vby a larger pulley on the. crank-shaft,'fso vasf-to give greater speed, as may be desired. In. this case themotion of the weighted-wheel will be. inl the .same direction; but'the engine must'be reversed.' v- I use arevolvingl condenser arrangedbeneath vthe weighted wheel and, carried by its shaft', which 'is hollow, andconnects at its npperend with the exhaust-steam pipe of the i engine, so that the steam being exhausted into this condenser is, by its motion and somel g water therein, 'quickly condensed, and all puffli'ngnoise avoided.

short axles, and the revolving weighted wheel f the boiler may be arranged upon and supported by the revolving weight bymeans of anti-friction rolls, soas to render it independent of the For compactness and the utilization of wei ght,

revolving motion of the weighted Wheel.

' yThis engine for drawing cars, while serving to transmit the power applied to operate it, uses such power advantageously by reason of the power being applied directly' to the tops of the traction-wheels.

' Referring vto the drawings, Figure l represents atop view of atruckfframework withf my revolving weighted Wheel applied-thereto Fig. 2, a front elevation of the samefand Fig.

I3 a sidev elevation.

The mechanism is mounted upon a truckframe, A, which is coupled with the car, and has the usual ianged wheels; b ut I do not use,l

them as the traction-wheels.

Between'the front and rear axles of they enf gine I arrange, upon short axles between hang-A-k ers B B,`traction-Wheels C D, and .upon the:V

tops ,of these Iarrange and support a horizontal revolving weighted wheel',`E,-so as to driveby friction the traction-wheels. This weighted wheel' is supported in positionby a vertical shaft, "F, passing through upper and lowerv bearings G in aframe, H, rising from the truckframe.'

The traction-wheels are driven from opposite sides of the revolving weighted wheel; and to obtain a forward motion of the tractionwheels at both sides I use at one side two small wheels, D D, one upon the other, of equal diameter, and both together equal in diarie'ter' to the single wheel C, so that I obtain an equal power of the traction-wheels in the same direction. as the weighted wheel, resting upOn the upper one of said wheels D and driving it backward, thereby drives the lower one forward. In this way I drive the traetionwheels by a continuous frictional rolling contact at their tops, so that their short axles are relieved of the weight of the wheel E, and serve only to hold the wheels in place, being iitted with the usual boxes and springs, and the driving power applied at a point always diametrically above the point of traction.

The weighted wheel must be sufficient to produce the required traction, and its under surface is adapted to revolve upon the treadsurface of the traction-wheels, orl upon a surface of less diameter than the traction-surface, so that the weight-bearing surface can be kept clean and free from mud orslush. This bearing-surface, of less diameter than the wheels C and D, when used, is formed upon the inner faces of the traction-wheels.

This engine, when used for street-ears, is driven by means of an upper face bevel-gear, I, into which gears a shifting-pinion, J, mounted upon a short shaft havingits bearings in the frame H and driven byl a chain, K, passing over a sprocket-wheel, L, on said pinion shaft, and a similar sprocketwheel, M, on the crank-shaft N, which is driven by hand-power applied to the crank, a steam-engine of small power suitably connected thereto, or some other prime motor ordinarily used.

A shiftin g-lever, O, pivoted upon the frame H, has a clutch-connection with the pinion J, for

throwing it out of gear with 'the revolving weighted wheel to stop the car. This connection is for giving the slow speed for street-` cars; but for increasing the speed an independent pinion, P, (carried by a short shaft at the opposite side of the weighted wheel, l l

i nation of a horizontal revolving weighted and thrown into gear with its face-gear I by a second shifting lever, 02,) is driven by a sprocket-wheel and chain-connection, Q, with a larger sprocket-wheel, It, on the crank-shaft. This independent pinion-connection gives 'the same direction of motion to the weighted wheel, and the movements of the crank-shaft and engine are reversed, and thus give the car the required increased speed. This second piniongear will also back the cars without reversing the rotation of the driving-shaft N by simply throwing said pinion in gear when the pinion J is thrown out.

I arrange a revolving condenser, S, on the lower end of the weighted wheel-shaft F, which is hollow and connected with' the eX- haust pipe or pipes of the engine, soi that the exhaust-steam is discharged into this revolv-` ing condenser, and by its motion and water 1 'condenser' utilizes its weight for tractionpower. l In using this' engine vfor fast trains, the engine-connection is made direct with the vertical shaft F of the weighted wheel. I have not shown this connection for fast trains; but it is obvious that it may be made by crank or otherwise. In this case the gear and shifting pinions will not be used, but the engine will control the motion ofthe weighted wheel directly. I contemplate, also, arranging the boiler upon the revolving weighted wheel by means of antifriction rolls, lso as to utilize the weight of the boiler upon the traction-wheels, the boiler, of course, being independent of the revolving motion ofthe weighted wheel.

f The weight E may be made comparatively shallow, so as to bring the cog-Wheel l as near the platform as possible, and additional weights may be secured uponthe'shaft F` above said cog-Wheel. `In this case a powerfulspring or springs may be arranged to press upon said shallow weight and take the place of the up-p, per or additional weights, the design being to obtain the proper driving friction upon the tops-ofthe drivers. I propose, also, to use proper brake devices forthe revolving weight, to be applied and operated in `any suitable yway to stop theV motion of the weight, and :thereby 'stop the car or train, for the same friction-power which drives the car or tram i will alsoI stop it. l

The weighted wheel is especially adapted for use 'on street-railways, while the spring @and light friction-wheel are for use onr the ordinary railways of rapid transit.

I claim;- .y 1. In an engine for railway-cars, the combination, with the tractionlwheels C D thereof,

of a horizontal revolving weighted wheel, E, y supported upon the tops of the traction-wheels and driving them, as set forth.

2. In an engine for railway-cars, the combil wheel, E, of the traction-wheels l) D, one'lupon the other, and the single traction-wheel C,

upon which the weight is supported for trans?` mitting speed, as described.

3. The combination, with a horizontal re-` volving weighted wheel E and the traction-l` wheels C D D, upon the tops of which it is supported for operation, as described, ofthe face gear-wheel I, the shifting-pinions J and P, and their connections with the crank-shaft,` for the purpose specified.

In testimony hat I claim the foregoing'.`

have affixed my signature the presence of two witnesses. y t l f Y JOSEPH F. KELLEY". Vlitnesses:` l

A. E. H. J oHNsoN, J. W. HnMiLroN 'Jonnson 

